CN109119287B - High-efficient high-quality snap-action temperature controller - Google Patents
High-efficient high-quality snap-action temperature controller Download PDFInfo
- Publication number
- CN109119287B CN109119287B CN201811300703.0A CN201811300703A CN109119287B CN 109119287 B CN109119287 B CN 109119287B CN 201811300703 A CN201811300703 A CN 201811300703A CN 109119287 B CN109119287 B CN 109119287B
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- rivet
- shell
- moving contact
- cap
- inner end
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/04—Bases; Housings; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H37/00—Thermally-actuated switches
- H01H37/02—Details
- H01H37/32—Thermally-sensitive members
- H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Thermally Actuated Switches (AREA)
Abstract
A high-efficiency high-quality snap-action temperature controller is provided with a boot-shaped hollow rivet with an integrated structure, a rivet body is mutually perpendicular to a rivet cap, a 1 st convex arc at one side edge of the rivet cap is matched and connected with an arc-shaped groove of a shell, a 2 nd concave arc at the other side edge of the rivet cap is matched and connected with an outer cylindrical surface of a central cylindrical boss of the shell, the bottom surface of the rivet cap is tightly connected with a 1 st plane of the shell, and the rivet body penetrates through a 1 st circular through hole of the shell to be riveted with the inner end part of a 4 th binding post. The used shoe-shaped hollow rivet can rivet the 4 th binding post on the preset accurate position of the shell rapidly and accurately, ensure that the fixed contact is completely butted with the moving contact and realize the whole surface contact of the fixed contact and the moving contact, simultaneously eliminate the occurrence of the riveting phenomenon, and improve the product percent of pass and the product assembly efficiency.
Description
Technical Field
The invention relates to the technical field of a kick temperature controller, in particular to a high-efficiency high-quality kick temperature controller.
Background
The kick type temperature controller is widely applied to some electric heating appliances and is used for controlling temperature and playing a role of overheat protection. The conventional snap-action temperature controller is shown in fig. 1, and comprises a cover 1, a bimetal disc 2, an action rod 3, a shell 4, a 3 rd wiring terminal 5, a 4 th wiring terminal 9, a moving contact support 11, a moving contact 12 and a fixed contact 13, wherein the bimetal disc 2 is placed in a horizontal concave annular groove at the top of the shell 4, the action rod 3 vertically and movably penetrates through a central through hole of a central cylindrical boss 4-2 of the shell 4, one end part of the moving contact support 11 is fixedly provided with the moving contact 12, the fixed contact 13 is fixed at the inner end part of the 4 th wiring terminal 9 and opposite to the moving contact 12, a cover plate 7 with an inner groove is further arranged, the other end part of the moving contact support 11 is riveted with the shell 4 through the inner end part of the 3 rd wiring terminal 5 and a 3 rd rivet 6, the inner end part of the 4 th wiring terminal 9 is riveted with the 1 st circular through hole 4-4 of the shell 4 through a pressing block 14 and a 5 th hollow rivet 10, the 5 th rivet 8 is fixedly arranged at one end part of the moving contact support 11, and the lower end part of the action rod 3 is connected with the middle part of the moving contact support 11 through the 4 th rivet 8.
When riveting, the pressing block 14 is firstly placed on the 1 st surface 4-1 of the shell 4, the position of the pressing block 14 cannot be fixed, so that the 5 th hollow rivet 10 is difficult to smoothly pass through the middle through hole of the pressing block 14, when the position of the pressing block 14 is deviated and interferes with the 1 st plane 4-1 of the shell 4, the riveting crack is easy to cause, and the product qualification rate is reduced; meanwhile, because a larger gap exists between the middle through hole of the pressing block 14 and the pin body of the 5 th hollow rivet 10, the pin body of the 5 th hollow rivet 10 and the through hole of the connected shell 4 also need larger tolerance, so that the 4 th wiring terminal 9 and the connected shell 4 are possibly fixed at a non-preset position after riveting, the fixed contact 13 fixed at the inner end part of the 4 th wiring terminal 9 is changed into small part surface contact with the movable contact 12 from whole surface contact, even line contact, the overload capacity of the contact is greatly reduced, the contact is easy to rush fire, and the service life of the contact is greatly reduced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-efficiency high-quality snap-action temperature controller, which is characterized in that a boot-shaped hollow rivet of a newly designed integrated structure is quickly and accurately inserted into a 1 st round through hole of a shell and a through hole of the inner end part of a 4 th wiring terminal, and the 4 th wiring terminal is riveted on a preset accurate position of the shell, so that a fixed contact fixed on the inner end part of the 4 th wiring terminal is ensured to be completely butted with a movable contact fixed on one end part of a movable contact bracket, the whole surface contact of the fixed contact and the movable contact is realized, the occurrence of a riveting phenomenon is eliminated, and the product yield and the product assembly efficiency are improved.
The technical proposal of the invention is as follows:
the high-efficiency high-quality snap-action temperature controller comprises a sealing cover 1, a bimetal disc 2, an action rod 3, a shell 4, a 3 rd wiring terminal 5, a 3 rd rivet 6, a cover plate 7, a 4 th rivet 8, a 4 th wiring terminal 9, a moving contact support 11, a moving contact 12 and a fixed contact 13, wherein the bimetal disc 2 is placed in a horizontal inner groove at the top of the shell 4, the action rod 3 vertically and movably penetrates through a central through hole of a central cylindrical boss 4-2 of the shell 4, one end part of the moving contact support 11 is fixedly provided with the moving contact 12, the other end part of the moving contact support 11 is riveted with the shell 4 through the inner end part of the 3 rd wiring terminal 5 and the 3 rd rivet 6, the fixed contact 13 is fixed at the inner end part of the 4 th wiring terminal 9 and opposite to the moving contact 12, the lower end of the action rod 3 is connected with the middle part of the moving contact bracket 11 in a contact way, a shoe-shaped hollow rivet 20 is further arranged and is formed by integrating a rivet body 20-4 and a rivet cap 20-3, the rivet body 20-4 and the rivet cap 20-3 are mutually perpendicular, a 1 st convex arc 20-1 is arranged at one side edge of the rivet cap 20-3 and is matched and connected with an arc-shaped groove 4-3 of the shell 4, a 2 nd concave arc 20-2 is arranged at the other side edge of the rivet cap 20-3 and is matched and connected with the outer cylindrical surface of a central cylindrical boss 4-2 of the shell 4, the bottom surface of the rivet cap 20-3 is tightly connected with a 1 st plane 4-1 of the shell 4, the rivet body 20-4 penetrates through the 1 st circular through hole 4-4 of the shell 4 and the 2 nd through hole 9-1 of the inner end part of the 4 th connecting terminal 9 and is riveted with the inner end part of the 4 th connecting terminal 9, the shoe blind rivet 20 is riveted to the cover plate 7 by a 4 th rivet 8.
The shoe blind rivet 20 is made of stainless steel or copper.
Compared with the prior art, the invention has the following remarkable effects:
in order to rivet the 4 th connecting terminal 9 on the preset position of the shell 4 quickly, safely and accurately, the fixed contact 13 arranged at the rear end part of the 4 th connecting terminal 9 after installation is completely opposite to the moving contact 12 arranged at one end of the moving contact bracket 11 and achieves full surface contact. To this end, the present invention provides a shoe blind rivet 20, in which the shoe rivet head 20-3 and the blind rivet body 20-4 are formed as a vertically integrated structure. In the process of inserting the shoe-shaped hollow rivet 20 into the 1 st circular through hole 4-4 of the shell, the 1 st convex arc 20-1 and the 2 nd concave arc 20-2 on two sides of the rivet cap 20-3 are respectively in matched contact connection with the arc-shaped groove 4-3 of the shell and the outer cylindrical surface of the central cylindrical boss 4-2, so that the shoe-shaped hollow rivet has guiding and positioning functions. The bottom surface of the rivet cap 20-3 can be rapidly and smoothly in close horizontal contact with the 1 st plane 4-1 of the housing, so that the rivet body 20-4 passes through the through hole at the inner end of the 4 th binding post 9 and is accurately positioned and riveted at the preset position of the housing 4. Therefore, the movable contact 12 and the fixed contact 13 can be completely opposite and can reach the whole surface contact hundredthly, the designed overload capacity is difficult to be guaranteed, and meanwhile, the assembling and riveting processes are rapid, accurate and smooth, so that the interference and riveting phenomena of related parts can not occur. The product quality and the assembly efficiency are greatly improved.
Drawings
Fig. 1 is a schematic structure diagram of a conventional snap-action thermostat.
FIG. 2 is a schematic diagram of a high efficiency high quality snap-action thermostat of the present invention.
Fig. 3 is a front view of the shoe blind rivet shown in fig. 2.
Fig. 4 is a right side view of fig. 3.
Detailed Description
The invention is further illustrated by the following examples.
Referring to fig. 2-4, a high-efficiency high-quality snap-action thermostat comprises a sealing cover 1, a bimetal disc 2, an action rod 3, a shell 4, a 3 rd wiring terminal 5, a 3 rd rivet 6, a cover plate 7, a 4 th rivet 8, a 4 th wiring terminal 9, a moving contact support 11, a moving contact 12 and a fixed contact 13, wherein the bimetal disc 2 is placed in a horizontal inner groove at the top of the shell 4, the action rod 3 vertically penetrates through a central through hole of a central cylindrical boss 4-2 of the shell 4, one end part of the moving contact support 11 is fixedly provided with the moving contact 12, the other end part of the moving contact support 11 is riveted with the shell 4 through the inner end part of the 3 rd wiring terminal 5 and the 3 rd rivet 6, the fixed contact 13 is fixed at the inner end part of the 4 th wiring terminal 9 and opposite to the moving contact 12, the lower end of the action rod 3 is connected with the middle part of the moving contact bracket 11 in a contact way, a shoe-shaped hollow rivet 20 is further arranged and is formed by integrating a rivet body 20-4 and a rivet cap 20-3, the rivet body 20-4 and the rivet cap 20-3 are mutually perpendicular, a 1 st convex arc 20-1 is arranged at one side edge of the rivet cap 20-3 and is matched and connected with an arc-shaped groove 4-3 of the shell 4, a 2 nd concave arc 20-2 is arranged at the other side edge of the rivet cap 20-3 and is matched and connected with the outer cylindrical surface of a central cylindrical boss 4-2 of the shell 4, the bottom surface of the rivet cap 20-3 is tightly connected with a 1 st plane 4-1 of the shell 4, the rivet body 20-4 penetrates through the 1 st circular through hole 4-4 of the shell 4 and the 2 nd through hole 9-1 of the inner end part of the 4 th connecting terminal 9 and is riveted with the inner end part of the 4 th connecting terminal 9, the shoe blind rivet 20 is riveted to the cover plate 7 by a 4 th rivet 8.
The shoe blind rivet 20 is made of stainless steel or copper.
A small hole is arranged at the inner end part of the 4 th binding post 9, and a fixed contact 13 is embedded in the small hole. The 4 th terminal 9 has a 2 nd through hole 9-1 formed at an inner end thereof to be matched with the shoe rivet 20. Since the rivet head 20-3 of the shoe-shaped blind rivet 20 is large enough to substantially cover the first plane 4-1 of the housing 4, and the positioning contact connection between the 1 st convex arc 20-1 and the arc-shaped groove 4-3, and between the 2 nd concave arc 20-2 and the outer circumference of the central cylindrical boss 4-2 is provided, the riveting between the inner end of the 4 th terminal 9 and the housing 4 is more secure.
Claims (2)
1. The utility model provides a high-efficient high-quality snap-action temperature controller, includes closing cap (1), bimetal disc (2), action pole (3), casing (4), 3 binding post (5), 3 rd rivet (6), apron (7), 4 th rivet (8), 4 th binding post (9), moving contact support (11), moving contact (12) and fixed contact (13), in the horizontal indent at casing (4) top was placed in bimetal disc (2), action pole (3) vertical movable run-through is in the central through-hole of casing (4) central cylindrical boss (4-2), moving contact support (11) one end is equipped with moving contact (12) admittedly, and moving contact support (11) other end is through 3 rd binding post (5) inner end and 3 rd rivet (6) and casing (4) riveting, fixed contact (13) are fixed in 4 th binding post (9) inner end and with moving contact (12) are relative, action pole (3) lower tip with moving contact support (11) middle part contact connection, its characterized in that: the novel shoe-shaped hollow rivet is characterized by further comprising a shoe-shaped hollow rivet (20), which is formed by integrating a rivet body (20-4) and a rivet cap (20-3), wherein the rivet body (20-4) is mutually perpendicular to the rivet cap (20-3), a 1 st convex arc (20-1) is arranged at one side edge of the rivet cap (20-3), the rivet cap is matched and connected with an arc-shaped groove (4-3) of a shell (4), a 2 nd concave arc (20-2) is arranged at the other side edge of the rivet cap (20-3), the rivet cap is matched and connected with the outer cylindrical surface of a central cylindrical boss (4-2) of the shell (4), the bottom surface of the rivet cap (20-3) is tightly connected with a 1 st plane (4-1) of the shell (4), the rivet body (20-4) penetrates through the 1 st circular through hole (4-4) of the shell (4) and the 2 nd through hole (9-1) of the inner end part of the 4 th connecting terminal (9) to be riveted with the inner end part of the 4 th connecting terminal (9), and the shoe-shaped hollow rivet (20) is riveted with a cover plate (7) through the 4 th rivet (8).
2. The high efficiency high quality snap-action thermostat of claim 1 wherein: the shoe hollow rivet (20) is made of stainless steel or copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811300703.0A CN109119287B (en) | 2018-11-02 | 2018-11-02 | High-efficient high-quality snap-action temperature controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811300703.0A CN109119287B (en) | 2018-11-02 | 2018-11-02 | High-efficient high-quality snap-action temperature controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109119287A CN109119287A (en) | 2019-01-01 |
| CN109119287B true CN109119287B (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811300703.0A Active CN109119287B (en) | 2018-11-02 | 2018-11-02 | High-efficient high-quality snap-action temperature controller |
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| Country | Link |
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| CN (1) | CN109119287B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001143586A (en) * | 1999-11-17 | 2001-05-25 | Matsushita Electric Works Ltd | Thermostatic switch |
| CN107591280A (en) * | 2017-11-01 | 2018-01-16 | 佛山市通宝华龙控制器有限公司 | A kind of Kick type temperature controller that can improve overload capacity |
-
2018
- 2018-11-02 CN CN201811300703.0A patent/CN109119287B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001143586A (en) * | 1999-11-17 | 2001-05-25 | Matsushita Electric Works Ltd | Thermostatic switch |
| CN107591280A (en) * | 2017-11-01 | 2018-01-16 | 佛山市通宝华龙控制器有限公司 | A kind of Kick type temperature controller that can improve overload capacity |
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| Publication number | Publication date |
|---|---|
| CN109119287A (en) | 2019-01-01 |
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